email stuck in the "messages waiting to be routed" queue

Posted on 2006-04-24
Medium Priority
Last Modified: 2007-12-19
SBS 2003 Premium with SP1
Exchange 2003

The email has been running fine just fine for many weeks.  I (a few weeks ago) installed an autoresponder called Exclaimer.
There may be no connection, but now I am having a problem.

Does anyone have any information about Exclaimer
Can anyone suggest how to trouble shoot the emails stuck in the "messages waiting to be routed" queue.
I have tried restarting SMTP and IIS but the only thing that clears the queue is restarting the SBS.

Thanks for any help!
Restarting the server 2-3 times a day just to keep the email flowing is growing old.

Question by:Slator

Accepted Solution

puneetrajput25 earned 2000 total points
ID: 16532100
Queue: Messages waiting to be routed
Description: This queue holds messages until their next-destination server is determined. The messages are then moved to their respective link queues.
Troubleshooting: Messages may accumulate in this queue if Exchange routing problems exist. For example, message routing may be backed up. Disable any unnecessary connector restrictions because the restrictions can cause a significant degradation in server performance. You may have to turn on the CheckConnectorRestrictions registry key for some restrictions.
For additional information about this registry key, click the following article number to view the article in the Microsoft Knowledge Base:


Author Comment

ID: 16542822

Thanks for the quick response.  Your information was very helpful.
Apparently the connector problem was caused by the Exclaimer program I installed to Auto Respond to emails.
Your connector response started me down the right path which then led to Exclaimer.


Featured Post

Get free NFR key for Veeam Availability Suite 9.5

Veeam is happy to provide a free NFR license (1 year, 2 sockets) to all certified IT Pros. The license allows for the non-production use of Veeam Availability Suite v9.5 in your home lab, without any feature limitations. It works for both VMware and Hyper-V environments

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Steps to fix “Unable to mount database. (hr=0x80004005, ec=1108)”.
Exchange administrators are always vigilant about Exchange crashes and disasters that are possible any time. It is quite essential to identify the symptoms of a possible Exchange issue and be prepared with a proper recovery plan. There are multiple…
In this video we show how to create an email address policy in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Mail Flow…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
Suggested Courses
Course of the Month14 days, 4 hours left to enroll

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question